Categories: Malware

Refroso.2 removal guide

The Refroso.2 is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Refroso.2 virus can do?

Behavioural detection: Executable code extraction – unpacking
At least one process apparently crashed during execution
Sample contains Overlay data
Yara rule detections observed from a process memory dump/dropped files/CAPE
Creates RWX memory
Dynamic (imported) function loading detected
Reads data out of its own binary image
CAPE extracted potentially suspicious content
The binary likely contains encrypted or compressed data.
Authenticode signature is invalid
Tries to unhook or modify Windows functions monitored by Cuckoo
Attempts to interact with an Alternate Data Stream (ADS)
Anomalous binary characteristics

How to determine Refroso.2?


File Info:
name: 225DFF649EC2BB1D2392.mlwpath: /opt/CAPEv2/storage/binaries/6ee6fc9b0ac73de9c684d7aa4f0114af80e178782518da0c293e372ba96ddb2fcrc32: 14466CB6md5: 225dff649ec2bb1d239212670ff75badsha1: 09eb21285e8e8850045545b1436f8fa0abbf14dfsha256: 6ee6fc9b0ac73de9c684d7aa4f0114af80e178782518da0c293e372ba96ddb2fsha512: 5cf6ee431f27c01f1f8f96be9d866ec94b783a6b90d4819ab01d09c080cd5d6cd566bd338c76a6d74fec907637a956fe72b83abad3f8ad524f20dea53190540fssdeep: 3072:vmo+x12GHOh/KFOaIIWtO/uPd5YiGlgJQzOLcoFRGz/+Kdrp9kchm/GZT:uo+RHOJS3j4O/250R6YoFuGKX7Ntype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1833412CF1BCB712AF09E1876A5D786646FF2090CED9CF9538A5B03FD1128AA45CD660Csha3_384: 2b74f5d9e0a54460fbc69ecbd8b48f2e5a660357fab586e232f21c14eb5cbe7735275abf1e814559ecff5c07850a5416ep_bytes: 6a286870204000e87402000033ff57fftimestamp: 2009-04-11 07:44:47
Version Info:
FileDescription: Protected ApplicationFileVersion: 1, 0, 0, 1ProductVersion: 1, 0, 0, 1Comments: Is protected with Teggo MoleBox 4.2321Translation: 0x0000 0x04b0

Refroso.2 also known as:

Bkav	W32.AIDetect.malware2
Lionic	Trojan.Win32.Bifrose.lj8w
tehtris	Generic.Malware
DrWeb	BackDoor.Poison.12251
MicroWorld-eScan	Gen:Variant.Refroso.2
FireEye	Generic.mg.225dff649ec2bb1d
CAT-QuickHeal	VirTool.DelfInject.AF
ALYac	Gen:Variant.Refroso.2
Cylance	Unsafe
VIPRE	Gen:Variant.Refroso.2
Sangfor	Suspicious.Win32.Save.a
K7AntiVirus	Trojan ( 001788e91 )
Alibaba	Backdoor:Win32/IRCBot.a64c776a
K7GW	Trojan ( 001788e91 )
Cybereason	malicious.49ec2b
BitDefenderTheta	AI:Packer.DC5DED0B1E
Cyren	W32/VBInject.V.gen!Eldorado
Symantec	Backdoor.Bifrose!gen
Elastic	malicious (high confidence)
ESET-NOD32	a variant of Win32/Packed.MoleboxUltra suspicious
TrendMicro-HouseCall	TROJ_BREDLAB.SMD
ClamAV	Win.Trojan.Agent-36155
Kaspersky	Backdoor.Win32.IRCBot.irl
BitDefender	Gen:Variant.Refroso.2
NANO-Antivirus	Trojan.Win32.Midgare.hcfuc
SUPERAntiSpyware	Trojan.Agent/Generic
Avast	Win32:Injector-VT [Trj]
Tencent	Win32.Backdoor.Ircbot.Hoor
Ad-Aware	Gen:Variant.Refroso.2
Sophos	ML/PE-A + Mal/BigMole-B
Comodo	TrojWare.Win32.Buzus.ojmq@3tw83r
Zillya	Backdoor.IRCBot.Win32.12852
TrendMicro	TROJ_BREDLAB.SMD
McAfee-GW-Edition	Artemis!Trojan
SentinelOne	Static AI – Malicious PE
Trapmine	malicious.high.ml.score
Emsisoft	Gen:Variant.Refroso.2 (B)
Ikarus	Virus.Win32.VBInject
GData	Gen:Variant.Refroso.2
Jiangmin	TrojanDropper.VB.abrf
Avira	TR/Crypt.XPACK.Gen
Antiy-AVL	Trojan/Generic.ASBOL.C615
Arcabit	Trojan.Refroso.2
ViRobot	Backdoor.Win32.A.IRCBot.235853
Microsoft	Trojan:Win32/Wacatac.B!ml
Cynet	Malicious (score: 100)
AhnLab-V3	Trojan/Win32.Bifrose.R1707
Acronis	suspicious
McAfee	Artemis!225DFF649EC2
VBA32	BScope.Trojan.Inject
Malwarebytes	Trojan.MalPack.Generic
APEX	Malicious
Rising	Trojan.Generic@AI.100 (RDML:Tu/2ZE6e71A/Ogs/v8KUzg)
Yandex	Trojan.GenAsa!XMiXPNBz8gY
MAX	malware (ai score=100)
Fortinet	W32/Refroso.BKBI!tr
AVG	Win32:Injector-VT [Trj]
Panda	Generic Malware
CrowdStrike	win/malicious_confidence_100% (W)